| Dos Santos, Welligton Carlos1999 | 0-1 | Marra, E2187 | Brazil Chess - Floripa | 2026 |
| Terao, J2215 | 0-1 | Dos Santos, Welligton Carlos1999 | Brazil Chess - Floripa | 2026 |
| Dos Santos, Welligton Carlos1999 | ½-½ | Osipi, J2184 | Brazil Chess - Floripa | 2026 |
| Contreras Huaman, Fiorella2205 | 1-0 | Dos Santos, Welligton Carlos1999 | Brazil Chess - Floripa | 2026 |
| Dos Santos, Welligton Carlos1999 | 1-0 | Pinero, C2279 | Brazil Chess - Floripa | 2026 |
| Navarro Canete, Facundo Javier1833 | 0-1 | Dos Santos, Welligton Carlos1999 | Brazil Chess - Floripa | 2026 |
| Dos Santos, Welligton Carlos1999 | 1-0 | Silva, Joao Vitor Maximiano1749 | Brazil Chess - Floripa | 2026 |
| Waterkemper, Lucas Bauler1757 | ½-½ | Dos Santos, Welligton Carlos1999 | Brazil Chess - Floripa | 2026 |
| Dos Santos, Welligton Carlos1999 | 0-1 | Diamant, A2482 | Brazil Chess - Floripa | 2026 |
| Gurski, Guilherme Rybu1579 | 0-1 | Dos Santos, Welligton Carlos1999 | Brazil Chess - Floripa | 2026 |
| Cordeiro, M2049 | ½-½ | Dos Santos, Welligton Carlos1805 | 11th Floripa Open 2025 | 2025 |
| Kayser, Gustavo Warmling2036 | 0-1 | Dos Santos, Welligton Carlos1805 | 11th Floripa Open 2025 | 2025 |
| Dos Santos, Welligton Carlos1805 | 1-0 | Mariot Vaz, Joao Antonio Bertolu1982 | 11th Floripa Open 2025 | 2025 |
| Cordero, D2015 | ½-½ | Dos Santos, Welligton Carlos1805 | 11th Floripa Open 2025 | 2025 |
| Dos Santos, Welligton Carlos1805 | ½-½ | Lorenzon, Eduardo Lucas2039 | 11th Floripa Open 2025 | 2025 |